+34 636 531 496 contact@coolsax.dk



We believe that technology must be in order to help people and nature at the same time. If we keep animals in captivity, we should provide them the best conditions possible. We provide better and healthier habitats for aquatic creatures, better work conditions for the staff and more flexibility for the Aquarium.



We believe that animals in captivity should have the best condicions. Once we put them in aquaria, they deserve living in a clean and clear enviroment, removing all the dirt and algae grown by the artificial light. A perfect habitat is absolutelly necessary for success in animal keeping. It is a practical issue but also moral.


Working in public Aquaria can be one of the most beautiful jobs in the world. But it has also many dirty and dangerous tasks every day. It is not the same go swimming with sharks one single day inside a metal cage as doing it every day only for cleaning the glass. Spending time collecting catfish eggs is amazing. Clening windows is not. Robots can do it for You.


Almost every single Aquarium or Zoo is running out of people. Animals in captivity are 100% depending on the staff, and it is hard to keep all of the tasks done when you need one person in two places at the same time. Flexibility is the key. Robots can do tasks for us when we are doing something more productive and important for the company.


We know that the key to an unforgettable experience of visiting an aquarium is ensuring breathtaking visual impressions of the inhabited under-water-world. But what if the spectators cannot see clearly through the thick glass? Will they leave with a less experience of the animals and your aquarium?

CoolSax is a company that is specialized in cleaning and polishing under-water, by the use of robots. We ensure maximum visibility with minimum intervention.

Where possible our robots substitute the traditional human divers, cleaning and polishing at reducing cost compared to divers, enabling your team to focus on the fun part in their work. No more repetitive working postures for days, with potential sick days and other complaints to follow.

We can guarantee that it will be just as good as if done by the use of divers – at about 50% of the cost.


Paul Hamilton
Dubai Aquarium & Underwater Zoo
We are using the CoolSax window cleaning robots and we are highly satisfied with the product. It has very good flexibility. We recommend this product, it is an excellent robot.

Our Customers